PDA6, a PD Lurrian protocol droid, belonged to the protocol droid line engineered by Cybot Galactica. This particular droid, PDA6, served on the Ithorian Herdship owned by Master Zorneth, an Ithorian botanist. PDA6 teamed up with the droid C-3PO, another protocol unit, in an endeavor to disable the force field that shielded the stronghold of Craw, the ruler of Targonn.